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Liula [17]
3 years ago
8

Find the perimeter and area

Mathematics
2 answers:
Aleksandr [31]3 years ago
7 0

Answer:

P = 27.9

A = 27.25

Step-by-step explanation:

First we find the base using pythagorean theorem

c² = a² + b²

12² = 5² + b²

144 = 25 + b²

b² = 144 - 25

b² = 119

b = √ 119

b = 10.9

Perimeter = a + b + c

5 + 10.9 + 12 = 27.9

Area = 1/2 × b × h

A = 1/2 × 10.9 × 5

A = 54.5/2

A = 27.25

Therefore P = 27.9

A = 27.25

jeka943 years ago
3 0

Answer:

Area: 30 Perimeter: 22

Step-by-step explanation:

To find the area of the triangle you need to multiply the base and the length, which is directly perpendicular to the base. After multiplying, you will divide the product by 2 to get your answer, this is because a triangle is half a rectangle.

For the perimeter, I assumed that the empty side was a 5, please correct me if I am wrong. But to find the perimeter you need to add all the sides together, so I got 22.

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